title: Carrier-envelope phase stability of hollow fibers used for high-energy few-cycle pulse generation.
abstract: We investigated the carrier-envelope phase (CEP) stability of hollow-fiber compression for high-energy few-cycle pulse generation. Saturation of the output pulse energy is observed at 0.6 mJ for a 260 μm inner-diameter, 1 m long fiber, statically filled with neon. The pressure is adjusted to achieve output spectra supporting sub-4-fs pulses. The maximum output pulse energy can be increased to 0.8 mJ by either differential pumping (DP) or circularly polarized input pulses. We observe the onset of an ionization-induced CEP instability, which saturates beyond input pulse energies of 1.25 mJ. There is no significant difference in the CEP stability with DP compared to static-fill.
authors.forename: William A
authors.initials: WA
authors.lastname: Okell
authors.forename: Tobias
authors.initials: T
authors.lastname: Witting
authors.forename: Davide
authors.initials: D
authors.lastname: Fabris
authors.forename: Dane
authors.initials: D
authors.lastname: Austin
authors.forename: Maïmouna
authors.initials: M
authors.lastname: Bocoum
authors.forename: Felix
authors.initials: F
authors.lastname: Frank
authors.forename: Aurélien
authors.initials: A
authors.lastname: Ricci
authors.forename: Aurélie
authors.initials: A
authors.lastname: Jullien
authors.forename: Daniel
authors.initials: D
authors.lastname: Walke
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Marangos
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Lopez-Martens
authors.forename: John W G
authors.initials: JW
authors.lastname: Tisch